Supernatural: The Complete Fourth Season is the fourth box set compilation of Supernatural episodes It was released on September 1, 2009 in the United States (region 1).
Blu-ray Disc exclusive featuresEdit
- The Mythologies of Supernatural: From Heaven to Hell: Three-section featurette gallery bridging Heaven, Purgatory, and Hell to examine key mythological precepts
- Creator commentary on three key episodes
- Extended/unaired scenes
- Gag reel